fix: 公共模块，功能优化完善。

ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/DateUtils.java

@@ -158,7 +158,21 @@ public class DateUtils extends org.apache.commons.lang3.time.DateUtils
         long min = diff % nd % nh / nm;
         // 计算差多少秒//输出结果
         // long sec = diff % nd % nh % nm / ns;
-        return day + "天" + hour + "小时" + min + "分钟";
+        if(day>0){
+            return day + "天" + hour + "小时" + min + "分钟";
+        }else {
+            if(hour>0){
+                if(min>0){
+                return  hour + "小时" + min + "分钟";
+                }else {
+                    return  hour + "小时";
+                }
+            }
+            else {
+                return  min + "分钟";
+            }
+        }
+
     }
 
     /**